Shopping cart

ABSTRACT

A shopping cart features a frame forming a chassis portion and a handle portion. A number of casters are attached to the chassis portion while a basket attached to the handle portion. A pair of basket supports are positioned on opposite sides of the basket. The pair of basket supports include a pair of base portions connected to the chassis portion, a pair of forward tilting lower portions attached to the base portions, and a pair of rearward tilting upper portions attached to the pair of forward tilting lower portions.

CLAIM OF PRIORITY

This application claims priority to U.S. Provisional Application No.61/828,115, filed on May 28, 2013, the contents of which is incorporatedherein by reference.

FIELD OF THE INVENTION

The present invention relates generally to shopping carts and, inparticular, to a shopping cart that includes a support for the basket.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of an embodiment of the shopping cart ofthe present invention;

FIG. 2 is a side elevational view of the cart of FIG. 1;

FIG. 3 is a top plan view of the cart of FIGS. 1 and 2;

FIG. 4 is a front elevational view of the cart of FIGS. 1-3.

DETAILED DESCRIPTION OF EMBODIMENTS

An embodiment of the shopping cart of the present invention is indicatedin general at 10 in FIGS. 1-4. The cart includes a basket 12, preferablyfeaturing a conventional metal wire construction. The cart also includesa frame, indicated in general at 13, that forms a handle portion,indicated in general at 14, and a chassis portion, indicated in generalat 16.

The handle portion 14 features a generally upside-down U-shape so that agriping portion 18 is formed at the top and a pair of upright members 19a and 19 b extend down from the gripping portion. A pair of rear casters20 are pivotally attached to the trailing ends of a pair of chassis siderails 23 a and 23 b, near their junction with the upright members 19 aand 19 b, respectively. A gate frame features a generally horizontalportion 17 that extends between the bottom ends of a pair of uprightportions 21 a and 21 b that are longitudinally attached to uprightmembers 19 a and 19 b.

The trailing edges of sidewalls of the basket 12 are secured to theupright members 19 a and 19 b of the handle 14 by the gate frame uprightportions 21 a and 21 b, respectively, such as by welding or otherfastening arrangements known in the art. The trailing ends of the basketfloor wires are secured to the horizontal portion 17 of the gate frame.

The chassis portion 16 of the frame generally features a pair of siderails 23 a and 23 b that taper towards one another and are joined by anose 22 at the front of the cart. As a result, the chassis 16 tapers toa narrower width dimension towards the nose of the cart. A front casterstrip 24 is secured to and traverses the space between opposing sectionsof the pair of side rails 23 a and 23 b of the frame near the nose 22and a pair of front casters 26 are attached to the front caster strip.

The handle gripping portion 18, pair of handle upright members 19 a and19 b, pair of chassis side rails 23 a and 23 b and nose 22 arepreferably constructed from a single piece of steel tubing with a buttweld at the nose, handle, or any other suitable location formanufacturing. Other materials, both metallic and non-metallic, may beused in place of the steel tubing.

A lower shelf, indicated in general at 32, is formed by a number oflongitudinal wires 34, attached by their leading ends to a front bracingwire 33 attached to the front caster strip 24. A pair of rear tray wires35 and 36 are attached across the trailing end portions of thelongitudinal wires 34 and to frame side rails 23 a and 23 b, preferablyby welding. As will be explained in greater detail below, the rear traywires 35 and 36 have three purposes: they provide 1) the nesting stop 2)the lift feature for the caster lift wire and 3) the tray support.

Both the handle 14 and chassis 16 of the cart 10 are preferably formedfrom round tubing with most of the cross section deformed to an ellipse,as described in commonly owned U.S. Pat. No. 7,090,230, the contents ofwhich are hereby incorporated by reference. With reference to FIG. 2,the handle and chassis portions of the cart frame indicated at 37, 38and 39 are deformed or smashed to form an elliptical cross section.

Leaving handle gripping portion 18 as a round tube (as opposed toproviding it with an elliptical shape) provides a familiar grip.

The shopping cart 10 is also provided with a pair of basket supports,indicated in general at 40 a and 40 b in FIGS. 1 and 2. Each basketsupport 40 a and 40 b is preferably formed from a single wire, but amultiple piece structure may be used for each support instead.

As illustrated in FIGS. 1 and 2, the each basket support features abottom end that terminates in rearward-turned base portions 41 a and 41b that are generally horizontal and welded to the pair of chassis siderails 23 a and 23 b, respectively. In addition to the base portions 41 aand 41 b, as illustrated in FIGS. 1 and 2, the basket support wires 40 aand 40 b each feature a pair of forward tilting lower portions 42 a and42 b and a pair of rearward tilting upper portions 44 a and 44 b. Thetop end portions 46 a and 46 b of the basket supports 40 a and 40 b tiltback at a greater angle (from vertical) than the rearward tilting upperportions 44 a and 44 b and terminate adjacent to the upper ends of theupright portions 21 a and 21 b of the gate frame.

As illustrated in FIGS. 1 and 3, a gate, indicated in general at 50,forms the back wall of the cart basket 12 and is constructed from anumber of vertical and horizontal wires. The gate includes a generallyhorizontal top wire 52 with end portions that engage apertures 54 a and54 b formed at or near the top ends of the upright portions 21 a and 21b of the gate frame so as to form a hinge. As a result, the gate may berotated upwards, about an axis defined by the top wire 52, so that thebasket portion of a second cart may be inserted nose-first into basket12 in a nested fashion for storage and transport of the carts.

As is known in the art, a folding child carrier 56 includes a child seatand is pivotally attached to cross-wires of the gate 50. The childcarrier may be folded between a use position, illustrated in FIGS. 1-3,for carrying a child, and a storage position where it is folded againstthe gate to provide increased storage capacity in the basket 12.

With reference to FIGS. 1 and 2, the forward tilting lower portions 42 aand 42 b, rearward tilting upper portions 44 a and 44 b and rearwardtilting top portions 46 a and 46 b of the basket support are preferablyconnected to horizontal basket wires 60 a, 62 a, 64 a and 66 a and 60 b,62 b, 64 b and 66 b, respectively, preferably by welding. Connectionsbetween the basket supports and some (or all) of the horizontal wiresmay optionally be omitted and alternative fastening arrangements knownin the art, such as adhesive, fasteners, etc. may be used to secure thebasket support to the horizontal basket wires.

A bridge member, indicated in general at 70 in FIGS. 1, 2 and 4,provides further support for the basket 12. The bridge member, which ispreferably constructed from steel wire, includes a pair forward-turnedbase portions 72 a and 72 b that are generally horizontal and are weldedto the pair of chassis rails 23 a and 23 b to form caster lift wires.The caster lift wires are preferably provided with covers 78 a and 78 b,which are preferably formed from plastic and secured in place by rivets80 a and 80 b. As a result, caster lifts are formed on top of eachchassis side rail 23 a and 23 b. The caster lift wires 72 a and 72 b arepreferably formed from wire having a diameter of approximately 0.35inches, but other types of wire may be used. The plastic caster liftcovers 78 a and 78 b address paint adhesion/wear/rust problems.

As best illustrated in FIGS. 1 and 4, the bridge wire also features apair of generally vertical portions 74 a and 74 b that are joined attheir top ends by a horizontal section 76 that supports the bottom ofbasket 12 and is preferably secured thereto by welding. The bridgemember may be formed from a single piece of steel wire that is bent intothe proper shape, but may alternatively be formed of multiple piecesthat may not necessarily be steel wire.

With reference to FIGS. 1 and 4, when the cart 10 is nested with a cartof a similar construction, the caster lift covers 78 a and 78 b of therear-most cart engage the undersides of step-down portions 82 a and 82 bof rear tray wire 35 of the front-most cart so that the rear casterwheels 20 of the front-most cart are raised. The rear tray wire 36 ofthe front-most cart engages the pair of generally vertical portions 74 aand 74 b of the rear-most cart so as to serve as a nesting stop.

The shopping cart 10 described above supports the basket 12 so as toimprove the cargo weight hauling capacity of the cart. The shopping cart10 features a rugged, attractive and efficient construction. Embodimentsof the cart allow a tight nesting distance (9 inches, as an exampleonly) while maintaining a good structural support forward to support ahigh load (a 1200 pound proof load, as an example only).

The construction of the embodiment of the shopping cart described abovealso offers savings with regard to materials cost. In addition, thecaster lift design is very strong yet economical to produce.

While the preferred embodiments of the invention have been shown anddescribed, it will be apparent to those skilled in the art that changesand modifications may be made therein without departing from the spiritof the invention, the scope of which is defined by the following claims.

What is claimed is:
 1. A shopping cart comprising: a) a frame forming ahandle portion and a chassis portion, where the handle portion includesa pair of upright members joined at their top end portions by a grippingportion and the chassis portion includes a pair of side rails; b) abasket attached to the upright members of the handle portion; c) aplurality of casters attached to the side rails of the chassis portion;d) a pair of basket supports positioned on opposite sides of the basketand including: i. a pair of base portions positioned parallel with andconnected to the pair of side rails of the chassis portion; ii. a pairof forward tilting lower portions attached to the base portions; andiii. a pair of rearward tilting upper portions attached to the pair offorward tilting lower portions.
 2. The shopping cart of claim 1 whereinthe pair of base portions of the pair of basket supports each extend ina rearward direction and further comprising a bridge member including apair of forward-turned base portions, a pair of generally verticalportions joined to the pair of forward-turned base portions and agenerally horizontal section joining the pair of generally verticalportions, where the horizontal section supports a bottom of the basketand the pair of forward-turned base portions function as a caster lift.3. The shopping cart of claim 2 further comprising a pair of caster liftcovers positioned over the forward-turned base portions of the bridgemember.
 4. The shopping cart of claim 3 wherein the caster lift coversare constructed from plastic.
 5. The shopping cart of claim 2 whereinthe bridge member is a single piece of steel wire.
 6. The shopping cartof claim 2 wherein the vertical portions of the bridge member aresecured to the pair of forward tilting lower portions of the pair ofbasket supports.
 7. The shopping cart of claim 1 wherein the pair offorward tilting lower portions and pair of rearward tilting upperportions of the pair of basket supports are attached to the basket. 8.The shopping cart of claim 6 further comprising a pair of rearwardtilting top end portions attached to the pair of rearward tilting upperportions of the pair of basket supports, said rearward tilting top endportions also attached to the basket.
 9. The shopping cart of claim 1wherein each of the pair of basket supports is a single piece of steelwire.
 10. The shopping cart of claim 1 wherein the frame is formed oftubing and the pair of side rails of the chassis portion of the frameeach includes a portion having an elliptical cross-section with agenerally vertical longitudinal axis.
 11. The shopping cart of claim 10wherein the pair of upright members of the handle portion of the frameeach includes a portion having an elliptical cross-section with agenerally horizontal longitudinal axis.
 12. The shopping cart of claim 1further comprising: e) a pair of caster lifts secured to the pair ofside rails of the chassis portion of the frame; f) a lower shelfsupported between the pair of side rails of the chassis portion of theframe, where a trailing end of the lower shelf is supported by a firstrear tray wire; g) said first rear tray wire being engaged by casterlifts of a second shopping cart having a construction similar to theshopping cart when the shopping cart and the second shopping cart arenested.
 13. The shopping cart of claim 12 wherein the first rear traywire features a pair of step-down portions that are engaged by thecaster lifts of the second shopping cart when the shopping cart andsecond shopping carts are nested.
 14. The shopping cart of claim 12further comprising front caster strip, to which a pair of front castersare attached, and a front bracing wire attached to a leading end of thelower shelf.
 15. The shopping cart of claim 12 further comprising: h) abridge member including a pair of forward-turned base portions, a pairof generally vertical portions joined to the pair of forward-turned baseportions and a generally horizontal section joining the pair ofgenerally vertical portions, where the horizontal section supports abottom of the basket and the pair of forward-turned base portionsfunction as the caster lifts; i) a second rear tray wire positionedrearward of the first rear tray wire, said second rear tray wireengaging the pair of generally vertical portions of the bridge member ofa second shopping cart having a construction similar to the shoppingcart to serve as a nesting stop when the second shopping cart and theshopping cart are nested.
 16. A shopping cart comprising: a) a frameforming a chassis portion and a handle portion; b) a plurality ofcasters attached to the chassis portion; c) a basket attached to thehandle portion; d) a pair of basket supports positioned on oppositesides of the basket and including: i. a pair of base portions connectedto the chassis portion; ii. a pair of forward tilting lower portionsattached to the base portions; and iii. a pair of rearward tilting upperportions attached to the pair of forward tilting lower portions.
 17. Theshopping cart of claim 16 wherein the pair of base portions of the pairof basket supports each extend in a rearward direction and furthercomprising a bridge member including a pair of forward-turned baseportions, a pair of generally vertical portions joined to the pair offorward-turned base portions and a generally horizontal section joiningthe pair of generally vertical portions, where the horizontal sectionsupports a bottom of the basket and the pair of forward-turned baseportions function as a caster lift.
 18. The shopping cart of claim 16further comprising a pair of rearward tilting top end portions attachedto the pair of rearward tilting upper portions of the pair of basketsupports, said rearward tilting top end portions also attached to thebasket.
 19. The shopping cart of claim 16 further comprising: e) a pairof caster lifts secured to the pair of side rails of the chassis portionof the frame; f) a lower shelf supported between the pair of side railsof the chassis portion of the frame, where a trailing end of the lowershelf is supported by a first rear tray wire; g) said first rear traywire being engaged by caster lifts of a second shopping cart having aconstruction similar to the shopping cart when the shopping cart and thesecond shopping cart are nested.
 20. The shopping cart of claim 19further comprising: h) a bridge member including a pair offorward-turned base portions, a pair of generally vertical portionsjoined to the pair of forward-turned base portions and a generallyhorizontal section joining the pair of generally vertical portions,where the horizontal section supports a bottom of the basket and thepair of forward-turned base portions function as the caster lifts; i) asecond rear tray wire positioned rearward of the first rear tray wire,said second rear tray wire engaging the pair of generally verticalportions of the bridge member of a second shopping cart having aconstruction similar to the shopping cart to serve as a nesting stopwhen the second shopping cart and the shopping cart are nested.